EP 3412710 B1 20211110 - METHOD FOR PRODUCING POROUS SUPERABSORBENT POLYMER
Title (en)
METHOD FOR PRODUCING POROUS SUPERABSORBENT POLYMER
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES PORÖSEN SUPERABSORBIERENDEN POLYMERS
Title (fr)
PROCÉDÉ DE PRODUCTION D'UN POLYMÈRE SUPERABSORBANT POREUX
Publication
Application
Priority
- KR 20160178408 A 20161223
- KR 2017014874 W 20171215
Abstract (en)
[origin: EP3412710A1] The present disclosure relates to a preparation method of a porous super absorbent polymer exhibiting excellent absorption performance and improved absorption rate due to a novel pore structure, and a porous super absorbent polymer prepared therefrom. The porous super absorbent polymer includes a base resin powder including a cross-linked polymer of a water soluble ethylene-based unsaturated monomer containing acidic groups which are at least partially neutralized, and an inorganic filler contained in the cross-linked structure of the cross-linked polymer, wherein the base resin powder includes a plurality of pores having a diameter of a sub-micron (sub- µ m) scale in the cross-linked structure, and an interconnected pore structure in the form of an open channel in which 90% or more of the pores are connected to each other.
IPC 8 full level
A61L 15/42 (2006.01); A61L 15/60 (2006.01); C08F 2/26 (2006.01); C08F 2/44 (2006.01); C08F 220/06 (2006.01); C08J 3/24 (2006.01); C08J 9/00 (2006.01)
CPC (source: EP KR US)
A61L 15/425 (2013.01 - EP US); A61L 15/60 (2013.01 - EP US); B01J 20/267 (2013.01 - EP US); B01J 20/28085 (2013.01 - EP US); C07D 307/60 (2013.01 - EP US); C07D 317/34 (2013.01 - EP US); C08F 2/10 (2013.01 - EP US); C08F 2/26 (2013.01 - EP KR US); C08F 2/44 (2013.01 - EP US); C08F 20/06 (2013.01 - EP KR US); C08F 20/18 (2013.01 - KR US); C08F 20/28 (2013.01 - US); C08J 3/075 (2013.01 - EP US); C08J 3/12 (2013.01 - EP KR US); C08J 3/24 (2013.01 - EP US); C08J 3/245 (2013.01 - EP KR US); C08J 9/00 (2013.01 - EP KR US); C08K 3/00 (2013.01 - US); C08K 3/013 (2017.12 - KR); C08K 3/22 (2013.01 - US); C08K 5/00 (2013.01 - US); C08K 5/0025 (2013.01 - KR); C08K 5/053 (2013.01 - US); C08K 5/11 (2013.01 - KR US); C08K 5/41 (2013.01 - US); B01J 2220/68 (2013.01 - EP US); C08J 2207/12 (2013.01 - KR); C08J 2300/14 (2013.01 - KR); C08J 2333/02 (2013.01 - EP US); C08J 2333/08 (2013.01 - US); C08J 2333/10 (2013.01 - US); C08K 3/36 (2013.01 - EP US); C08K 2003/2227 (2013.01 - EP US); C08K 2201/005 (2013.01 - EP US)
Citation (examination)
- US 6174929 B1 20010116 - HAEHNLE HANS-JOACHIM [DE], et al
- EP 2589613 A1 20130508 - NIPPON CATALYTIC CHEM IND [JP]
- WO 9422502 A1 19941013 - PROCTER & GAMBLE [US]
- WO 9900187 A1 19990107 - BIOPORE CORP [US]
- JP 2006342306 A 20061221 - SUMITOMO SEIKA CHEMICALS
- EP 0827753 A2 19980311 - NIPPON CATALYTIC CHEM IND [JP]
- EP 2399944 A1 20111228 - NIPPON CATALYTIC CHEM IND [JP]
- EP 1837348 A1 20070926 - NIPPON CATALYTIC CHEM IND [JP]
- US 2012232177 A1 20120913 - LOPEZ VILLANUEVA FRANCISCO JAVIER [DE], et al
- EP 2518092 A1 20121031 - NIPPON CATALYTIC CHEM IND [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3412710 A1 20181212; EP 3412710 A4 20190327; EP 3412710 B1 20211110; CN 108884241 A 20181123; CN 108884241 B 20211008; JP 2019519663 A 20190711; JP 6727627 B2 20200722; KR 102112834 B1 20200519; KR 20180074586 A 20180703; US 10934400 B2 20210302; US 2019119452 A1 20190425; WO 2018117548 A1 20180628
DOCDB simple family (application)
EP 17883843 A 20171215; CN 201780022806 A 20171215; JP 2019506335 A 20171215; KR 2017014874 W 20171215; KR 20170174515 A 20171218; US 201716090966 A 20171215